CVE-2026-83374
Description
A flaw was found in OpenJDK. An unauthenticated remote attacker could exploit this vulnerability by sending crafted requests across network protocols to exposed application programming interfaces (APIs) within the Security component. A successful attack can result in unauthorized modification, creation, or deletion of critical application data. In addition, the flaw may allow untrusted code running in a restricted sandbox environment to tamper with protected data.
Statement
This vulnerability is rated as Moderate impact because exploitation carries high complexity, requiring targeted conditions where an application exposes PKCS#5 cryptographic padding routines directly to unauthenticated network input. In typical Red Hat Enterprise Linux and container deployments, Java applications do not process raw cipher data from untrusted clients without intermediate validation layers or authentication. Furthermore, the scope is limited to data integrity without compromising confidentiality or causing service denial.
Common Vulnerability Scoring System (CVSS) Score Details
Info alert:Important note
CVSS scores for open source components depend on vendor-specific factors (e.g. version or build chain). Therefore, Red Hat's score and impact rating can be different from NVD and other vendors. Red Hat remains the authoritative CVE Naming Authority (CNA) source for its products and services (see Red Hat classifications).
CVSS v3 Score Breakdown
| Red Hat | NVD | cve.org | |
|---|---|---|---|
| Base Score | 5.9 | N/A | 5.9 |
| Attack Vector | Network | N/A | Network |
| Attack Complexity | High | N/A | High |
| Privileges Required | None | N/A | None |
| User Interaction | None | N/A | None |
| Scope | Unchanged | N/A | Unchanged |
| Confidentiality | None | N/A | None |
| Integrity Impact | High | N/A | High |
| Availability Impact | None | N/A | None |
Vector
Red Hat: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N
cve.org: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N
Understanding the Weakness (CWE)
Access Control
Technical Impact: Bypass Protection Mechanism
Frequently Asked Questions
Not sure what something means? Check out our Security Glossary.
Want to get errata notifications? Sign up here.
